I've had readers complain that my image isn't the same as what they visualise in their head. It's good for generating engagement from both sides of the fence but doesn't really impact anything beyond that. Sooo, basically comes down to what you want to do
As the title suggests, a level system that gives experience from commenting and leaving reviews would exponentially increase reader engagement. Even if it's only "thanks for the chapter" that serves to attract other, more constructive comments through social proof.
For context, just adding a...
As title suggests, I just uploaded 3 new fictions, none of them appeared in latest releases, OR latest updates. I had readers follow me and read it but each fiction still has 0 views